Update french translation.
Fix EOS 500D camera model name.
Merge pull request #203 from christte/gphoto25apifix

Workaround for libgphoto2 API breakage in 2.5.0. Fixes red hat bug #892228
noise profile: updated GX1 profile
noise profile: removed duplicate line.
usermanual: minor updates
Merge branch 'master' of ssh://github.com/darktable-org/darktable